iStumbler
iStumbler
103.43

4.3

iStumbler free download for Mac

iStumbler

103.43
05 December 2018

Find local wireless networks.

Overview

iStumbler is a wireless discovery tool for Mac OS X, providing plugins for finding Wi-Fi networks, Bluetooth devices, Bonjour services, location information, and now 2.4 and 5 GHz spectrum analysis with your Mac.

iStumbler is one price for all the computers that you own. Download iStumbler and try it out for free, then purchase a license within the app via PayPal or Coinbase. Previous donors and subscribers are entitled to a free license: see the store page for details.

What's new in iStumbler

Version 103.43:
Added:
  • Live Map view to Location Plugin
  • Bluetooth LE Support to the Bluetooth Plugin
  • Real-Wave Spectrum view to WiPry Plugin
  • TouchBar support for opening or switching between plugins
Bug fixed:
  • Many many assorted bug fixes and enchancements
  • Better behaved when War Driving in the Mojave
  • Into the Dark Mode, Built for Mojave
  • Fixes a potential crash when Location Services are disabled

63 iStumbler Reviews

See all

Rate this app:

Eric•Woehler
28 June 2014

Most helpful

No longer free - dev's web page states clearly it is now $20 for all the computers you own. Seriously? $20? I would have considered paying $2 for this useful utility, but $20 is way too much. It's a good app but plenty of good alternatives out there - check out wifi explorer (my reccommendation); other apps besides these. Radar
Like (16)
Version 100
wickedsp1d3r
18 October 2017
Pretty unstable app. I would NOT buy it after 3-day usage experience. I am pretty sure there are better (and free) alternatives.
Like (4)
Version 102.2
Uncoy
11 February 2016
iStumbler pricing is too aggressive, leaving iStumbler naked to be copied and raped commercially by bottom feeders like Koingo Soft (AirRadar). I bought a license in solidarity (iStumbler is great software) but as most of my machines are on Snow Leopard, I'm still mainly using the free version and didn't have to. Zero to $25 is obnoxious. If being obnoxious was your goal, you've succeeded. In the long term, encouraging competition is not good business practice. My new lower review is based on the $25 price tag. The software still works fine. I hope the developer finds a better compromise between thinking about his users and thinking about himself. $20 was still okay for a simple but nifty utility which works on all your computers.
Like (6)
Version 101.5
1 answer(s)
Moofing
Moofing
27 April 2016
Seriously! $25 is a slap in the face. I opened it maybe once or twice a year. $5 would be the max.
Like
Felix01
16 January 2016
Alright folks, help me out here. If all I’m really wanting is something to help deconflict from other Wi-Fi networks in the area, wouldn’t Apple’s included Wireless Diagnostics tool work just fine? And save me 25 bucks to boot now that the iStumbler developer has decided to start charging to put a pretty wrapper on something Apple already provides for free? Before I get flamed, of course I know iStumbler does other things but I’m just interested in identifying the local Wi-Fi networks and their channels. Do a spotlight search on “Wireless Diagnostics” and open it up. Click on “Scan Now” in the lower right and voila, Apple’s cool little app finds all the 2.4 and 5GHz networks within range and the first column on the left makes suggestions on the 2.4 GHz and 5 GHz channels which are least used (Best choices if you don’t want to let Apple automatically select an appropriate channel). Plus if you pull down the Wireless Diagnostics “Window” menu, there’s other cool things in the app’s toolbox like a sniffer function.
Like (2)
Version 101.5
jooosh
11 November 2015
I appreciate the new visual tweaks and the other updates from v99. Keep up the great work!
Like
Version 101.5
jooosh
11 November 2015
Thanks Alf for the great software. I've been using this for many years to help diagnose WiFi issues and it's always been solid. Thrilled to pay $25 for this update that has saved me many more hours and $$$ in the past. Keep up the great work and don't let the haters get to you!!
Like
Version 101.5
suds
15 October 2015
Meh. Last time I tried any of these programs they only worked with the built in Mac adapters. If you are not afraid of the terminal, you can do a little grep foo, or better yet install aircrack-ng suite, and get more data.
Like
Version 101.5
2 answer(s)
Moofing
Moofing
27 April 2016
Not afraid of terminal. Tell us more!
Like
suds
suds
27 April 2016
Install macports or homebrew then install the aircrack-ng package.
The aircrack-ng wiki is actually pretty good (I typically don't like wikis)
airmon-ng to put adapter into monitor mode (if it supports the mode)
then aireodump-ng to list APs with data and clients.

You will need to sudo most of these commands.

Kismet (not sure if there is a true port for the mac, there is Kismac, but its not the same) will also list wired clients connected to an AP (I'm guessing its using the encrypted broadcast/arp packets to find them.)
Like
Noivad
26 July 2015
When the app was free, I would use that since it was the best free app out there. When the dev started charging, I considered it but found others that cost less and did just as many things as I needed. Is the app good? Yes. But is the App worth the current price when there are others out there with the same capabilities or more for less? No. At $10–$15 I would have stuck with it, but not at the current price. I think the dev should have looked at what competitors where charging for equivalent features and priced accordingly to retain customers. And just to be clear: I do believe in supporting good apps by paying for them, even if they are donation-ware. I buy shareware regularly, and recommend apps that I see as worth the price. In this case, it’s not worth the current price, and is an otherwise average app in an already crowded field.
Like (5)
Version 101.4
1 answer(s)
Uncoy
Uncoy
11 February 2016
Yes, the pricing is too aggressive, leaving iStumbler naked to rape by Koingo Soft (AirRadar). Why can't good developers figure out that some money is better than none?

I think I may have bought a license in solidarity (iStumbler is great software) but as most of my machines are on Snow Leopard, I'm still mainly using the free version.
Like (2)
Xenophile
22 November 2014
I highly recommend NetSpot or WiFi Explorer. iStumbler is nice but not worth $20. Note to developer: when you raise the price, try adding significant new functionality so there is an obvious reason for the price increase. Your utility is now among the most expensive of its kind. so it should provide the most features of its kind.
Like (5)
Version 100.123
3 answer(s)
Istumbler
Istumbler
15 June 2015
Thanks for the feedback, I was expecting some backlash and as long as the app sells well I'm not too worried about rusting the feathers of the "all software should be free" crowd.

The two apps you mentioned, NetSpot and WiFi [sic] Explorer are currently only Wi-Fi scanners, neither has Bluetooth or Bonjour support. So I feel OK charging more for iStumbler since it does do quite a bit more than any other tool on the market right now.
Like (2)
Uncoy
Uncoy
11 February 2016
See my comment above iStumbler. Zero to $25 is obnoxious. If being obnoxious was your goal, you've succeeded. In the long term, encouraging competition is not good business practice.
Like
Xenophile
Xenophile
11 February 2016
Who suggested you should give away your app for free?
Like
B-Jefferson-Le-Blanc
06 November 2014
The feedback on this page should serve as a warning to any developer who wants to start charging for an app they previously offered for free. Many people are ungrateful and think, though they get paid for their work, you have no right to do the same. One may quibble over the price, but the principle remains. I've seen complaints when an app went from free to just $5. You may think you can do without such people as customers, but they will frag you on websites like this one anyway. They seem to miss the irony that they are being every bit as mean spirited as they accuse you of being. It's a clear case of transference. They think they'll look better by ragging on you. They're wrong. If an app worked well enough to get a four star rating when it was free, it's utility doesn't drop significantly if it now costs a little or a lot. Cheap and expensive are subjective values at best, having nothing to do with how well an app works. Thus, without even trying it, I'll give it four stars based on the majority of reviewers who like it.
Like (7)
Version 100.123
4 answer(s)
B-Jefferson-Le-Blanc
B-Jefferson-Le-Blanc
08 December 2014
@ Jazzyguy: That's rather beside the point, I think. Or rather, it makes my point for me. Thanks.
Like
Jazzyguy
Jazzyguy
09 December 2014
Something wrong with this thread and it is NOT the speller.I thoughtthe speller got me but I was wrong.
Like
Jazzyguy
Jazzyguy
31 March 2015
Your point is on your head.
Like
B-Jefferson-Le-Blanc
B-Jefferson-Le-Blanc
31 March 2015
@ Jazzyguy: My, aren't we cute. You've got no coherent argument to make, so you resort to trite insults. As I suggested, the poor quality of your thinking is self evident.
Like
Jazzyguy
21 September 2014
The worst!!!! The money squeezing Developer wants $20 to strengthen his coffers. Don't give to him. Get NetSpot which is free (as in Beer) and enjoy a great application.If you have an old edition of iStumbler it is still good,unfortunately for him he can't take it away from us. It is available for SnowLeopard and Leopard but if you don't have it just use NetSpot.
Like (2)
Version 100.121
1 answer(s)
Jazzyguy
Jazzyguy
14 October 2014
@Rickzeman That is right! I am exercizing my right not to buy it.
Like
$14.99

4.3

App requirements: 
  • Intel 64
  • OS X 10.10.3 or later
Category: 
Developer Website: 
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